General
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Target
https://github.com/davon21121/krampus-cracked/blob/main/celex.exe
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Sample
240419-zwwsvafe74
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://github.com/davon21121/krampus-cracked/blob/main/celex.exe
Resource
win10v2004-20240412-en
Malware Config
Extracted
mercurialgrabber
https://discordapp.com/api/webhooks/1227755328331055104/yv0O4qpiLKYiPVsNq52ssWn10u8_DYKLpIwqabGIAH6LWtMNT1NnTVGkUAqT7knivE64
Extracted
C:\Users\Admin\Downloads\@Please_Read_Me@.txt
wannacry
13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94
Targets
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Target
https://github.com/davon21121/krampus-cracked/blob/main/celex.exe
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Mercurial Grabber Stealer
Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.
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Modifies WinLogon for persistence
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Suspicious use of NtCreateProcessExOtherParentProcess
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Suspicious use of NtCreateUserProcessOtherParentProcess
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Looks for VirtualBox Guest Additions in registry
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Downloads MZ/PE file
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Drops file in Drivers directory
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Looks for VMWare Tools registry key
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Modifies RDP port number used by Windows
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Sets service image path in registry
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Uses Session Manager for persistence
Creates Session Manager registry key to run executable early in system boot.
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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Modifies file permissions
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Registers COM server for autorun
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Adds Run key to start application
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Checks for any installed AV software in registry
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Maps connected drives based on registry
Disk information is often read in order to detect sandboxing environments.
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Drops file in System32 directory
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Sets desktop wallpaper using registry
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MITRE ATT&CK Matrix ATT&CK v13
Persistence
Boot or Logon Autostart Execution
5Registry Run Keys / Startup Folder
4Winlogon Helper DLL
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
5Registry Run Keys / Startup Folder
4Winlogon Helper DLL
1Defense Evasion
Modify Registry
9Indicator Removal
1File Deletion
1Virtualization/Sandbox Evasion
2File and Directory Permissions Modification
1Impair Defenses
1Disable or Modify Tools
1Pre-OS Boot
1Bootkit
1Subvert Trust Controls
1Install Root Certificate
1Hide Artifacts
1Hidden Files and Directories
1